skinboxctrls.pas

一套及时通讯的原码

    property OnConstrainedResize;
    property OnDockDrop;
    property OnDockOver;
    property OnDblClick;
    property OnDragDrop;
    property OnDragOver;
    property OnEndDock;
    property OnEndDrag;
    property OnEnter;
    property OnExit;
    property OnGetSiteInfo;
    property OnMouseDown;
    property OnMouseMove;
    property OnMouseUp;
    property OnResize;
    property OnStartDock;
    property OnStartDrag;
    property OnUnDock;
  end;

  TCloseUpEvent = procedure (Sender: TObject; Accept: Boolean) of object;
  TPopupAlign = (epaRight, epaLeft);


  TspPopupListBox = class(TspSkinListBox)
  private
    FOldAlphaBlend: Boolean;
    FOldAlphaBlendValue: Byte;
    procedure WMMouseActivate(var Message: TMessage); message WM_MOUSEACTIVATE;
  protected
    procedure CreateParams(var Params: TCreateParams); override;
  public
    constructor Create(AOwner: TComponent); override;
    procedure Hide;
    procedure Show(Origin: TPoint);
  end;


  TspCBItem = record
    R: TRect;
    State: TOwnerDrawState;
  end;

  TspSkinCustomComboBoxStyle = (spcbEditStyle, spcbFixedStyle);

  TspSkinCustomComboBox = class(TspSkinCustomControl)
  protected
    FListBoxAlphaBlend: Boolean;
    FListBoxAlphaBlendAnimation: Boolean;
    FListBoxAlphaBlendValue: Byte;

    FStyle: TspSkinCustomComboBoxStyle;

    FOnChange: TNotifyEvent;
    FOnClick: TNotifyEvent;
    FOnCloseUp: TNotifyEvent;

    FOnListBoxDrawItem: TspDrawSkinItemEvent;
    FOnComboBoxDrawItem: TspDrawSkinItemEvent;

    FMouseIn: Boolean;
    FOldItemIndex: Integer;
    FDropDownCount: Integer;
    FLBDown: Boolean;
    FListBoxWindowProc: TWndMethod;
    FEditWindowProc: TWndMethod;
    //
    FListBox: TspPopupListBox;
    //
    CBItem: TspCBItem;
    Button: TspCBButtonX;
    FEdit: TspCustomEdit;
    FromEdit: Boolean;

    function GetImages: TCustomImageList;
    function GetImageIndex: Integer;
    procedure SetImages(Value: TCustomImageList);
    procedure SetImageIndex(Value: Integer);

    function GetHorizontalExtent: Boolean;
    procedure SetHorizontalExtent(Value: Boolean);

    procedure EditCancelMode(C: TControl);
    function GetListBoxDefaultFont: TFont;
    procedure SetListBoxDefaultFont(Value: TFont);
    function GetListBoxDefaultCaptionFont: TFont;
    procedure SetListBoxDefaultCaptionFont(Value: TFont);
    function GetListBoxDefaultItemHeight: Integer;
    procedure SetListBoxDefaultItemHeight(Value: Integer);
    function GetListBoxCaptionAlignment: TAlignment;
    procedure SetListBoxCaptionAlignment(Value: TAlignment);


    procedure CheckButtonClick(Sender: TObject);

    procedure SetListBoxCaption(Value: String);
    function  GetListBoxCaption: String;
    procedure SetListBoxCaptionMode(Value: Boolean);
    function  GetListBoxCaptionMode: Boolean;

    procedure ListBoxDrawItem(Cnvs: TCanvas; Index: Integer;
      ItemWidth, ItemHeight: Integer; TextRect: TRect; State: TOwnerDrawState);

    function GetSorted: Boolean;
    procedure SetSorted(Value: Boolean);

    procedure SetStyle(Value: TspSkinCustomComboBoxStyle);
    procedure DrawDefaultItem(Cnvs: TCanvas);
    procedure DrawSkinItem(Cnvs: TCanvas);

    function GetItemIndex: Integer;
    procedure SetItemIndex(Value: Integer);

    procedure ListBoxWindowProcHook(var Message: TMessage);
    procedure EditWindowProcHook(var Message: TMessage);
    procedure SetItems(Value: TStrings);
    function GetItems: TStrings;

    procedure SetListBoxDrawItem(Value: TspDrawSkinItemEvent);
    procedure SetDropDownCount(Value: Integer);
    procedure EditChange(Sender: TObject);
    procedure EditUp(AChange: Boolean);
    procedure EditDown(AChange: Boolean);
    procedure EditUp1(AChange: Boolean);
    procedure EditDown1(AChange: Boolean);
    procedure EditPageUp1(AChange: Boolean);
    procedure EditPageDown1(AChange: Boolean);
    procedure ShowEditor;
    procedure HideEditor;
    procedure DrawButton(C: TCanvas);
    procedure CalcRects;
    procedure WMSETFOCUS(var Message: TMessage); message WM_SETFOCUS;
    procedure WMKILLFOCUS(var Message: TWMKILLFOCUS); message WM_KILLFOCUS;
    procedure WMSIZE(var Message: TWMSIZE); message WM_SIZE;
    procedure CMTextChanged(var Message: TMessage); message CM_TEXTCHANGED;
    procedure CMMouseEnter(var Message: TMessage); message CM_MOUSEENTER;
    procedure CMMouseLeave(var Message: TMessage); message CM_MOUSELEAVE;
    procedure CMCancelMode(var Message: TCMCancelMode); message CM_CANCELMODE;
    procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
      X, Y: Integer); override;
    procedure MouseUp(Button: TMouseButton; Shift: TShiftState;
      X, Y: Integer); override;
    procedure MouseMove(Shift: TShiftState; X, Y: Integer); override;

    procedure ListBoxMouseDown(Sender: TObject; Button: TMouseButton;
              Shift: TShiftState; X, Y: Integer);
    procedure ListBoxMouseMove(Sender: TObject; Shift: TShiftState;
              X, Y: Integer);
    procedure ListBoxMouseUp(Sender: TObject; Button: TMouseButton;
              Shift: TShiftState; X, Y: Integer);

    procedure GetSkinData; override;
    procedure WMMOUSEWHEEL(var Message: TMessage); message WM_MOUSEWHEEL;
    procedure KeyDown(var Key: Word; Shift: TShiftState); override;
    procedure CMWantSpecialKey(var Msg: TCMWantSpecialKey); message CM_WANTSPECIALKEY;
    procedure CMEnabledChanged(var Message: TMessage); message CM_ENABLEDCHANGED;

    procedure DefaultFontChange; override;
    procedure CreateControlDefaultImage(B: TBitMap); override;
    procedure CreateControlSkinImage(B: TBitMap); override;

    procedure Notification(AComponent: TComponent; Operation: TOperation); override;
    procedure Change; virtual;
  public
    FontName: String;
    FontStyle: TFontStyles;
    FontHeight: Integer;
    SItemRect, FocusItemRect: TRect;
    ItemLeftOffset, ItemRightOffset: Integer;
    ItemTextRect: TRect;
    FontColor, FocusFontColor: TColor;
    ButtonRect,
    ActiveButtonRect,
    DownButtonRect, UnEnabledButtonRect: TRect;
    ListBoxName: String;
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure ChangeSkinData; override;
    procedure CloseUp(Value: Boolean);
    procedure DropDown;
    function IsPopupVisible: Boolean;
    function CanCancelDropDown: Boolean;
    procedure Invalidate; override;
  public
    property ListBoxAlphaBlend: Boolean read FListBoxAlphaBlend write FListBoxAlphaBlend;
    property ListBoxAlphaBlendAnimation: Boolean
      read FListBoxAlphaBlendAnimation write FListBoxAlphaBlendAnimation;
    property ListBoxAlphaBlendValue: Byte read FListBoxAlphaBlendValue write FListBoxAlphaBlendValue;

    property Images: TCustomImageList read GetImages write SetImages;
    property ImageIndex: Integer read GetImageIndex write SetImageIndex;

    property ListBoxCaption: String read GetListBoxCaption
                                    write SetListBoxCaption;
    property ListBoxCaptionMode: Boolean read GetListBoxCaptionMode
                                    write SetListBoxCaptionMode;

    property ListBoxDefaultFont: TFont
      read GetListBoxDefaultFont write SetListBoxDefaultFont;
    property ListBoxDefaultCaptionFont: TFont
      read GetListBoxDefaultCaptionFont write SetListBoxDefaultCaptionFont;
    property ListBoxDefaultItemHeight: Integer
      read GetListBoxDefaultItemHeight write SetListBoxDefaultItemHeight;
    property ListBoxCaptionAlignment: TAlignment
      read GetListBoxCaptionAlignment write SetListBoxCaptionAlignment;

    property Enabled;
    property PopupMenu;
    property ShowHint;
    property TabOrder;
    property Visible;
    //
    property Text;
    property Align;
    property Items: TStrings read GetItems write SetItems;
    property ItemIndex: Integer read GetItemIndex write SetItemIndex;
    property DropDownCount: Integer read FDropDownCount write SetDropDownCount;
    property HorizontalExtent: Boolean
      read GetHorizontalExtent write SetHorizontalExtent; 
    property Font;
    property Sorted: boolean read GetSorted write SetSorted;
    property Style: TspSkinCustomComboBoxStyle read FStyle write SetStyle;
    property OnListBoxDrawItem: TspDrawSkinItemEvent
      read FOnListBoxDrawItem write SetListBoxDrawItem;
    property OnComboBoxDrawItem: TspDrawSkinItemEvent
      read FOnComboBoxDrawItem write FOnComboBoxDrawItem;
    property OnChange: TNotifyEvent read FOnChange write FOnChange;
    property OnClick: TNotifyEvent read FOnClick write FOnClick;
    property OnCloseUp: TNotifyEvent read FOnCloseUp write FOnCloseUp;
  end;

  TspSkinComboBox = class(TspSkinCustomComboBox)
  published
    property ListBoxAlphaBlend;
    property ListBoxAlphaBlendAnimation;
    property ListBoxAlphaBlendValue;

    property TabStop;
    property HorizontalExtent;
    property Images;
    property ImageIndex;
    property ListBoxCaption;
    property ListBoxCaptionMode;
    property ListBoxDefaultFont;
    property ListBoxDefaultCaptionFont;
    property ListBoxDefaultItemHeight;
    property ListBoxCaptionAlignment;

    property Enabled;
    property PopupMenu;
    property ShowHint;
    property TabOrder;
    property Visible;
    //
    property Text;
    property Align;
    property Items;
    property ItemIndex;
    property DropDownCount;
    property Font;
    property Sorted;
    property Style;
    property OnListBoxDrawItem;
    property OnComboBoxDrawItem;
    property OnChange;
    property OnClick;
    property OnCloseUp;
  end;

  TspColorBoxStyles = (spcbStandardColors, // first sixteen RGBI colors
                       spcbExtendedColors, // four additional reserved colors
                       spcbSystemColors,   // system managed/defined colors
                       spcbIncludeNone,    // include clNone color, must be used with cbSystemColors
                       spcbIncludeDefault, // include clDefault color, must be used with cbSystemColors
                       spcbCustomColor,    // first color is customizable
                       spcbPrettyNames);   // instead of 'clColorNames' you get 'Color Names'
  TspColorBoxStyle = set of TspColorBoxStyles;

  TspSkinColorComboBox = class(TspSkinCustomComboBox)
  private
    FShowNames: Boolean;
    FExStyle: TspColorBoxStyle;
    FNeedToPopulate: Boolean;
    FListSelected: Boolean;
    FDefaultColorColor: TColor;
    FNoneColorColor: TColor;
    FSelectedColor: TColor;
    procedure SetShowNames(Value: Boolean);
    function GetColor(Index: Integer): TColor;
    function GetColorName(Index: Integer): string;
    function GetSelected: TColor;
    procedure SetSelected(const AColor: TColor);
    procedure ColorCallBack(const AName: string);
    procedure SetDefaultColorColor(const Value: TColor);
    procedure SetNoneColorColor(const Value: TColor);
    procedure SetExStyle(AStyle: TspColorBoxStyle);
  protected
    procedure DrawColorItem(Cnvs: TCanvas; Index: Integer;
      ItemWidth, ItemHeight: Integer; TextRect: TRect; State: TOwnerDrawState);
    procedure CreateWnd; override;
    function PickCustomColor: Boolean; virtual;
    procedure KeyDown(var Key: Word; Shift: TShiftState); override;
    procedure OnLBCloseUp(Sender: TObject);
  public
    constructor Create(AOwner: TComponent); override;
    procedure PopulateList;
    property Colors[Index: Integer]: TColor read GetColor;
    property ColorNames[Index: Integer]: string read GetColorName;
  published
    property ListBoxCaption;
    property ListBoxCaptionMode;
    property ListBoxAlphaBlend;
    property ListBoxAlphaBlendValue;
    property ListBoxAlphaBlendAnimation;
    property Enabled;
    property PopupMenu;
    property ShowHint;
    property TabOrder;
    property Visible;
    //
    property Align;
    property ItemIndex;
    property DropDownCount;
    property Font;
    property Sorted;
    property OnChange;
    property OnClick;
    //
    property ExStyle: TspColorBoxStyle read FExStyle write SetExStyle
      default [spcbStandardColors, spcbExtendedColors, spcbSystemColors];
    property Selected: TColor read GetSelected write SetSelected default clBlack;
    property DefaultColorColor: TColor read FDefaultColorColor write SetDefaultColorColor default clBlack;
    property NoneColorColor: TColor read FNoneColorColor write SetNoneColorColor default clBlack;
    property ShowNames: Boolean read FShowNames write SetShowNames;
  end;

  TspFontDevice = (fdScreen, fdPrinter, fdBoth);
  TspFontListOption = (foAnsiOnly, foTrueTypeOnly, foFixedPitchOnly,